CN215538661U

CN215538661U - Horizontal flow sedimentation tank

Info

Publication number: CN215538661U
Application number: CN202121957549.1U
Authority: CN
Inventors: 郝思佳; 崔雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-18
Anticipated expiration: 2031-08-20

Abstract

The utility model belongs to the technical field of water treatment, solves the technical problems of large occupied area, low precipitation efficiency, uneven precipitation load and low solid content of sewage discharge in the prior art, provides a horizontal sedimentation tank, which comprises a pool bottom wall, a pair of opposite pool side walls, a plurality of first layered guide plates, a plurality of water collecting grooves, a pair of guide channels, a first mud scraping device and a pair of mud collecting pools, wherein the pool bottom wall and the pair of opposite pool side walls are positioned between the pool bottom wall and the pair of opposite pool side walls, the flow space comprises a water outlet area, the tail end of each first layered guide plate, which is positioned at the downstream of the water flow direction, forms a water flow rising area, the water collecting tank is positioned at the top of the water outlet area and above each water flow rising area, a first driving mechanism of the first mud scraping device drives a plurality of first mud scraping plates to do reciprocating motion relative to the corresponding first mud scraping plates, and a flow guide channel and a mud collecting tank are arranged on the outer sides of the side walls of the pair of tanks. The utility model has the advantages of small occupied area, high precipitation efficiency, uniform precipitation load and high solid content of sewage discharge.

Description

Horizontal flow sedimentation tank

Technical Field

The utility model relates to the technical field of water treatment, in particular to a horizontal flow sedimentation tank.

Background

Sedimentation is the process of separating suspended particles from water by gravity. The precipitation process is an important link of the conventional water treatment process, is indispensable in municipal water supply and sewage treatment, and is also a process which occupies a large proportion of land and investment in water plant engineering. At present, sedimentation tanks are commonly adopted in water treatment industries such as tap water production, sewage treatment and the like to purify water, the sedimentation tanks comprise a horizontal sedimentation tank, an inclined tube sedimentation tank, an inclined plate sedimentation tank and the like, and solid particles are separated from water by utilizing process facilities of the sedimentation tanks. However, in the prior inclined tube sedimentation tank and the prior inclined plate sedimentation tank, water flows from bottom to top, and sludge slides downwards along the inclined tube or the inclined plate, so that the main defects of the inclined tube sedimentation tank and the prior inclined plate sedimentation tank are poor in impact load resistance, while the prior horizontal flow sedimentation tank has strong impact load resistance, but the main defects of large occupied area, low sedimentation efficiency, uneven sedimentation load and low solid content of sewage discharge due to siphon sludge discharge.

Therefore, it is needed to provide a horizontal flow sedimentation tank with small floor area, high sedimentation efficiency, uniform sedimentation load and high solid content in sewage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a horizontal flow sedimentation tank, which comprises: the pool bottom wall and the pair of opposite pool side walls are positioned between the pool bottom wall and the pool side wall, and the water flow direction of the water flow is parallel to the plane of the pool bottom wall; the flow space comprises a water outlet area, a row of multi-row first layered guide plates which are parallel to the water flow direction at intervals are arranged in the water outlet area, the lengths of the first layered guide plates in the direction parallel to the water flow direction are sequentially reduced from the bottom wall of the pool to the top of the flow space and are vertical to the water flow direction, a water flow rising area is formed at the tail end of each first layered guide plate in the downstream of the water flow direction, and a plurality of water collecting grooves which are positioned above each water flow rising area and receive rising water flow are arranged at the top of the water outlet area; the two ends of the water collecting groove are opened, and a through hole for communicating the water collecting groove with the adjacent diversion channel is formed in each pool side wall; the first mud scraping device comprises a first driving mechanism and a plurality of first mud scraping plates, one first mud scraping plate is arranged corresponding to each first layered guide plate, and the first driving mechanism drives the first mud scraping plates to reciprocate relative to the corresponding first mud scraping plates in the direction perpendicular to the water flow direction; the outer sides of the two ends of the pair of tank side walls corresponding to each row of first layered guide plates are provided with a pair of mud collecting tanks, a plurality of mud passing holes distributed along the side edges of the first layered guide plates are formed in the adjacent upper parts of the pair of tank side walls and the two ends of the first layered guide plates in an intersecting manner, and the mud passing holes are communicated with the mud collecting tanks at the same side.

Furthermore, the number of the water collecting grooves is equal to the sum of the first layered guide plate and the bottom wall of the pool, and the water collecting grooves are arranged at the positions, right opposite to the water flow rising areas, of the top of the water outlet area.

Furthermore, the flowing space also comprises a settling zone positioned at the upstream of the water outlet zone, and at least one row of second layered guide plates which are arranged in the settling zone and are spaced and parallel to the water flow direction are arranged in the settling zone; the horizontal flow sedimentation tank also comprises: the second mud scraping devices correspond to the second layered guide plate rows in number and comprise a second driving mechanism and a plurality of second mud scraping plates, and one second mud scraping plate is arranged corresponding to each second layered guide plate; a pair of mud collecting tanks are arranged at two ends of the outer sides of the pair of tank side walls corresponding to each row of second layered guide plates, and a plurality of mud passing holes distributed along each side edge of the second layered guide plates are formed in the adjacent upper parts of the pair of tank side walls and the two ends of the second layered guide plates in an intersecting manner.

Furthermore, each first layered guide plate and each second layered guide plate in each row are flat plates, and the sides of the first layered guide plates in each row, which are positioned at the upstream of the water flow direction, are aligned with each other, the number of rows of the first layered guide plates in each row is the same as that of the second layered guide plates in each row, and the first layered guide plates and the second layered guide plates in the same row are positioned on the same plane; when the second layered guide plates are in a row, the adjacent first layered guide plates and the second layered guide plates are mutually close to each other and form a gap, and the first mud scraping device and the second mud scraping device independently move in the gap; when the second layered guide plates are more than two rows, two adjacent second layered guide plates are mutually close to each other and form a gap, and every two adjacent second mud scraping devices move independently in the gap.

Further, each first mud scraper or/and each second mud scraper respectively reciprocates between a pair of tank side walls under the drive of the first drive mechanism or/and the second drive mechanism to correspondingly scrape off the mud accumulated on the first layered guide plate or/and the second layered guide plate, one time of mud scraping is completed in the process of moving from the close proximity of one tank side wall to the close proximity of the other opposite tank side wall for each first mud scraper or/and each second mud scraper, the mud accumulated on each first layered guide plate or/and each second layered guide plate is scraped into the mud passing holes when moving between the pair of tank side walls, the lower part of the mud passing hole at the highest position of the tank side wall is sealed by the corresponding first mud scraper or/and the second mud scraper and the upper part allows water flow to pass through when moving to the close proximity of any one tank side wall, all other first or/and second scrapers completely close the corresponding mud passing holes.

Furthermore, the first driving mechanism comprises a driving assembly and a driving plate which are in driving connection, a pair of parallel guide rails and a first driving frame, the first driving frame comprises a first vertical frame and a plurality of split vertical frames, the driving plate is in driving connection with the driving assembly, the first vertical frame and the split vertical frames are mutually parallel along the direction perpendicular to the water flow and are respectively and fixedly connected with two ends of the driving plate, the first vertical frame is positioned at the upstream of the water flow direction and is fixedly connected with one end of each first mud scraper, the split vertical frames are respectively and fixedly connected with the other end of each first mud scraper, in addition, the length of each split vertical frame is sequentially increased along the water flow direction, on being parallel to the rivers direction, each first mud scraper is close to or contacts in order to scrape mud operation with the upper surface and the bottom of the pool wall movably of the first layering guide plate that corresponds respectively with the length adaptation of the first layering guide plate that corresponds.

Furthermore, second actuating mechanism includes drive assembly and drive plate, a pair of parallel guide and the second drive frame of drive connection, and the second drive frame includes a pair of second mullion, and a pair of second mullion is parallel to each other and respectively with the both ends fixed connection of drive plate along the perpendicular to rivers direction, and is a plurality of the second mud scraper sets up and both ends all with a pair of second mullion fixed connection along being on a parallel with rivers direction interval, and on being on a parallel with rivers direction, the length adaptation of each second mud scraper and the second layering guide plate that corresponds, each second mud scraper movably is pressed close to or contacts with the upper surface and the bottom of the pool wall of the second layering guide plate that correspond respectively in order to carry out the mud scraping motion.

Furthermore, the mud passing holes are rectangular, a plurality of slide type mud guiding frames correspondingly connected with the lower end faces of the mud passing holes are arranged in the mud collecting pool, and when the first mud scraping plate or the second mud scraping plate does not reach any pool side wall in the moving process, the mud passing through the mud passing holes is received on the corresponding slide type mud guiding frames.

Furthermore, protruding edges or folded edges formed by bending per se are welded at the two end parts of the first layered guide plate or/and the second layered guide plate, which are opposite to the two end parts of the upper and lower reaches of the water flow direction, notches matched with the protruding edges or the folded edges are arranged on the first mud scraping plate or/and the second mud scraping plate, and when the first mud scraping plate or the second mud scraping plate moves, the notches move along the protruding edges or the folded edges relatively.

Furthermore, the lengths of the first layered guide plates form an increasing equal difference series from small to large.

The utility model has the beneficial effects that: the horizontal sedimentation tank adopts the mode that the water outlet area is subjected to layered horizontal sedimentation by utilizing a plurality of first layered guide plates, each first layered guide plate is subjected to layered mud scraping by utilizing a corresponding plurality of first mud scraping plates, the mud scraping is collected by the mud collecting tank, and the high-quality settled treatment water entering each water collecting tank is received by adopting the guide channels.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.

FIG. 1 is a schematic overall view of a horizontal flow sedimentation tank according to the present invention;

fig. 2 is an exploded schematic view of the horizontal sedimentation tank of the present invention (the first and second mud scraping devices are omitted);

FIG. 3 is a partial schematic view of the effluent zone of the horizontal flow sedimentation tank of the present invention; (the first mud scraper is omitted);

FIG. 4 is a partial schematic view of a settling zone in the case of a horizontal sedimentation tank according to the present invention having a settling zone (the second sludge scraping means is omitted);

fig. 5 is a schematic view of a first mud scraping device of the horizontal sedimentation tank of the present invention;

FIG. 6 is a schematic view of a second mud scraping device of the horizontal sedimentation tank of the present invention;

FIG. 7 is a schematic view of a slide type mud guide of the horizontal flow sedimentation tank of the present invention;

fig. 8 is a schematic view of the folds of the first layered baffle or/and the second layered baffle of the horizontal flow sedimentation tank of the present invention;

fig. 9 is a schematic view of the mudguards provided on the first or/and second mudguards of the horizontal sedimentation basin according to the utility model;

fig. 10 is a schematic view of a wedge-shaped body of the first or/and second mud scraper of the horizontal sedimentation tank of the present invention;

fig. 11 is a partial schematic view of the water intake zone of the horizontal flow sedimentation tank of the present invention;

description of reference numerals:

1. a tank bottom wall; 2. a tank side wall; 2.1, through holes; 2.2, passing through a mud hole; 3. a first laminar flow guide plate; 4. a water collection tank; 5. a diversion channel; 6. a first mud scraping device; 6.1, a first mud scraper; 6.2, a first vertical frame; 6.3, split mullions; 7. a second laminar flow guide plate; 8. a second mud scraping device; 8.1, a second mud scraper; 8.2, a second vertical frame; 9. a mud collecting pool; 10. a fender; 11. a drive assembly; 12. a drive plate; 13. parallel guide rails; 14. a sliding type mud guide frame; 14.1, a slide; 14.2, a boss; 14.3, a fixed arm; 14.4, reinforcing arms; 15. folding edges; 16. a flow guide wall; 17. a water flow hole; 18. a flow distribution plate; 19. a sludge collection tank; 20. a sludge discharge pipe;

r1, a water outlet area; r2, precipitation zone; r3, water inlet area.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and the various features of the embodiments may be combined with each other within the scope of the present invention.

Referring to fig. 1 to 11, as an object of the present invention, a horizontal flow sedimentation tank is provided, which comprises a tank bottom wall 1 and a pair of opposite tank side walls 2 therebetween, wherein the tank bottom wall 1 and the pair of tank side walls 2 jointly define a flow space for water flow (not shown), the flow direction of the water flow is parallel to the plane of the tank bottom wall, that is, the top of the flow space and the tank bottom wall 1 are respectively located above and below the direction perpendicular to the water flow direction, and the pair of tank side walls 2 are parallel to each other. The flow space comprises an outlet region R1, in which an array of rows of first laminar flow-guiding plates 3 are arranged in the outlet region R1, the first laminar flow-guiding plates 3 are spaced parallel to the direction of the water flow, and the lengths of the first laminar flow-guiding plates 3 in the direction parallel to the direction of the water flow decrease in sequence from the bottom wall 1 of the tank towards the top of the flow space and perpendicular to the direction of the water flow, and a water flow rising region is formed at the downstream end of each first laminar flow-guiding plate 3 in the direction of the water flow, so that the passage formed by the adjacent first laminar flow-guiding plates 3 above and below or the adjacent first laminar flow-guiding plates 3 and the bottom wall 1 of the tank can make the water flow from the end of the corresponding first laminar flow-guiding plate 3 above each passage, more specifically, the tail of the advection sedimentation region. The top of the water outlet area R1 is provided with a plurality of water collecting tanks 4 which are positioned above each water flow rising area and receive rising water flow, or the areas where the water collecting tanks 4 are positioned are water collecting areas, and reasonable water outlet area, the number of the water collecting tanks 4, the placing positions and the hole number and the hole diameter of each water collecting tank 4 are designed according to the treatment scale and the treatment water quality of the horizontal flow sedimentation tank during design, so that the design of the water collecting areas reaches the standard. The length of the first layered guide plate 3 and the second layered guide plate (further explained below) in the flow space is arranged to be short at the top and long at the bottom to generate a plurality of water outlet ascending areas, the length of the first layered guide plate and the second layered guide plate determines the area of each ascending area, the area of each ascending area is determined by the area between each layered guide plate and the corresponding enclosed area of the side walls of the two pools, if the intervals of each layered guide plate are different, the enclosed area is different, each ascending area is not necessarily provided with a water collecting tank, 1 or more water collecting tanks can be arranged, the water flow in the ascending areas is ensured to ascend uniformly, the horizontal flow velocity of the water flow layered by each layered guide plate is the same, the ascending flow velocity of the ascending areas is the same, and the horizontal and ascending flow velocity are the same, so that the sludge accumulated on each layered guide plate is uniformly distributed, and the precipitation load is uniform. The horizontal flow sedimentation tank further comprises a pair of diversion channels 5 which are arranged on the outer sides of the pair of tank side walls 2 and correspond to the two ends of the water collecting tank 4, the two ends of the water collecting tank 4 are open, and through holes 2.1 which are communicated with the water collecting tank 4 and the adjacent diversion channels 5 are formed in each tank side wall 2, namely, water flow entering the water collecting tank 4 enters the diversion channels 5 through the through holes 2.1 of the two tank side walls 2 respectively, and then the high-quality water subjected to sedimentation treatment is guided to other places through the diversion channels 5. The horizontal flow sedimentation tank also comprises a first mud scraping device 6 which is provided with a first driving mechanism and a plurality of first mud scraping plates 6.1, one first mud scraping plate 6.1 is arranged corresponding to each first layered flow guiding plate 3, the first driving mechanism drives the first mud scraping plates 6.1 to reciprocate relative to the corresponding first mud scraping plate 6.1 in the direction perpendicular to the water flow direction, and each first mud scraping plate 6.1 is used for scraping impurities such as sludge, sand grains and the like deposited on each first layered flow guiding plate 3, therefore, the mud described in the utility model is taken as the representative of the impurities to be widely understood. Be equipped with a pair of mud collecting tank 9 on a pair of pond lateral wall 2 is corresponding to the outside at every 3 both ends of first layering guide plate, and, a plurality of mud holes 2.2 of crossing arranged along 3 sides of first layering guide plate have all been seted up in the crossing adjacent top in a pair of pond

lateral wall

2 and 3 both ends of first layering guide plate, each is crossed mud hole 2.2 and is linked together with the mud collecting tank 9 of homonymy, that is to say, each is crossed mud hole 2.2 and arranges that it is a plurality of and be a little higher than the upper surface of first layering guide plate 3 along the rivers direction in the both sides of the first layering guide plate 3 of each row, this upper surface is to rivers layering and guide flow direction's surface, at the mud in-process of scraping at every turn of first mud scraping device 6, mud is scraped into mud collecting tank 9 by first mud scraping plate 6.1 through mud hole 2.2. In summary, the flow space of the horizontal sedimentation tank of this embodiment is only provided with the water outlet region R1, and the water outlet region R1 has the functions of sedimentation and water outlet for water flow, and is particularly suitable for the situation that the turbidity of raw water to be treated is low and the amount of precipitated sludge is small, and the horizontal sedimentation tank has the advantages of high sedimentation efficiency, small floor area and improved solid content of sewage discharge.

Referring further to fig. 3, in an embodiment, the number of the water collecting troughs 4 is equal to the sum of the first layered flow guiding plate 3 and the bottom wall of the pool, and a water collecting trough 4 is disposed at a position of the top of the water outlet region R1, which is opposite to each water flow rising area, so that each water collecting trough 4 corresponds to each water flow rising area one by one, and each water collecting trough 4 can efficiently and quickly collect the incoming water corresponding to each water flow rising area.

Referring to fig. 1, 2 and 4, in an embodiment, the flow space further includes a settling zone R2 located upstream of the water outlet zone R1, the settling zone R2 is provided with at least one row of second layered baffles 7 spaced parallel to the water flow direction, when the number of rows is two or more, the length of each row in the water flow direction may be different, each row is provided with a plurality of second layered baffles 7 to layer the water flow, and the number of layers may be different. The number of rows and the length of each row of the settling zone R2 are determined comprehensively by factors such as the amount of treated water, the quality of water, the amount of sludge settled, the driving ability of the second sludge scraper 8, and the like. The number of layers in each row is comprehensively determined by factors such as the amount of treated water, the water quality, the position of the row at the R2 of the precipitation zone, the precipitation curve and the like. In the settling zone R2, the distance from the water surface to the uppermost second laminar flow guide plate 7 is the depth of water in the uppermost layer, the distance between adjacent second laminar flow guide plates 7 is the depth of water in each intermediate layer, and the distance between the pool bottom wall 1 and the lowermost second laminar flow guide plate 7 is the depth of water in the lowermost layer. During design, the reasonable number of columns, the reasonable length of the columns and the reasonable number of layers of each column are determined, so that the low operation failure of the equipment and the high water quality of the water outlet area R1 can be ensured. The horizontal flow sedimentation tank also comprises second sludge scraping devices 8 with the number corresponding to the column number of the second layered guide plates 7 and a pair of sludge collecting tanks 9 arranged at the outer sides of the pair of tank side walls 2 and corresponding to the two ends of each column of the second layered guide plates 7, namely, the sludge collecting tanks 9 with the number corresponding to the column number of the second layered guide plates 7 and mutually independent are respectively arranged at the left outer side and the right outer side of the pair of tank side walls 2 corresponding to the sedimentation zone R2, and each sludge collecting tank 9 can be formed by separating an integral tank by adopting a vertical partition plate, so that each pair of sludge collecting tanks 9 corresponding to the water outlet zone R1 or the sedimentation zone R2 are mutually independent, and the movement of each first sludge scraping plate 6.1 and each second sludge scraping plate 8.1 can also be relatively independent. And a diversion canal 5 is respectively arranged on the upper part of the left and right outer sides of the pair of pool side walls 2 corresponding to the water outlet region R1, a mud collecting pool 9 is respectively arranged on the lower part of the diversion canal 5, a plurality of water collecting tanks 4 which are supported by using the two pool side walls 2 of the water outlet region R1 as supporting points are arranged between the left and right diversion canals 5 at intervals, the lower part of each water collecting tank 4 belongs to the water outlet region R1, and therefore ascending water flow from the water outlet region R1 enters the water collecting tanks 4. The second sludge scraping device 8 comprises a second driving mechanism and a plurality of second sludge scraping plates 8.1, when the number of the rows of the second layered guide plates 7 is more than two, the amount of the sludge precipitated in each row is different due to the position difference of each row in the precipitation zone R2, and the reasonable sludge scraping period of the row is selected. A second scraper 8.1 is arranged corresponding to each second layered deflector 7, the second scraper 8.1 and the first scraper 6.1 can be fixed between two vertical frames (further described below), the first scraper 6.1 and the second scraper 8.1 at the lowest layer are close to or contact with the tank bottom wall 1, the other first scrapers 6.1 and the second scrapers 8.1 are close to or contact with the corresponding first layered deflector 3 and the second layered deflector 7, during the operation of the second scraper 8 and the first scraper 6, the first scrapers 6.1 at the same column and the second scrapers 8.1 at the same column synchronously move on the tank bottom wall 1 and the corresponding layered deflectors at the lowest layer and the other layers respectively, and during the movement, the sludge in front can not leak to the rear of the scrapers. A plurality of mud passing holes 2.2 distributed along each side edge of the second layered guide plate 7 are arranged above the adjacent intersection of the two ends of the pair of tank side walls 2 and the two ends of the second layered guide plate 7. In order to reduce the influence of the vertical frames and the mud scrapers entering and exiting the settling area R2 on the water flow in the movement process, the flow cross section area occupied by the vertical frames and the mud scrapers is reduced as much as possible, and the width of the vertical frames and the thickness of the mud scrapers can be reduced on the flow cross section on the premise that the vertical frames and the mud scrapers meet the mud scraping strength condition. From the foregoing, the horizontal sedimentation tank of the present embodiment is provided with the water outlet region R1 and the sedimentation region R2 in the flowing space, so as to be particularly suitable for the situation that the turbidity of the raw water to be treated is relatively high and the amount of the sedimented sludge is relatively large, and therefore, the horizontal sedimentation tank further increases the application range and improves the sedimentation efficiency and the solid content of the sewage.

Referring further to fig. 1 to 4, in an embodiment, each first layered flow guiding plate 3 and each second layered flow guiding plate 7 of each column are, for example, flat plates with a rectangular shape, and the sides of, for example, rectangular sides located upstream in the water flow direction are all aligned with each other, the rectangular sides are understood as that each first layered flow guiding plate 3 of the same column and each second layered flow guiding plate 7 of each column divide the water flow into layers, the number of rows of the first layered flow guiding plates 3 of each column is the same as the number of rows of the second layered flow guiding plates 7 of each column, and the first layered flow guiding plate 3 and the second layered flow guiding plate 7 of the same row are all located on the same plane, and the head and the tail end of each second layered flow guiding plate 7 of each column in the water flow direction are all located on the same plane. In the direction of parallel water flow, the gaps (further explained below) between the first layered guide plate 3 and the second layered guide plate 7 and between the two adjacent second layered guide plates 7 are set as small as possible, so that each layer of outlet laminar flow of the settling zone R2 can enter each corresponding layer of the water outlet zone R1 without being disturbed, in this way, each layer of water flow can smoothly flow through the first layered guide plate 3 and the second layered guide plate 7 on the same layer, both ends of each layered guide plate are fixed on the side walls 2 of the two pools, and the shallow pool principle is utilized, thereby improving the settling efficiency. When the second layered guide plates 7 are arranged in a row, the sedimentation zone is particularly suitable for a small and micro horizontal flow sedimentation tank with short distance from a water inlet end to a water outlet end, the second layered guide plates 7 of the sedimentation zone R2 are not arranged in rows and only layered, the layered sedimentation zone R2 becomes a high-efficiency sedimentation zone R2, the sedimentation zone R2 uses a second mud scraping device 8, the adjacent first layered guide plates 3 and the second layered guide plates 7 are mutually close to each other and form a gap, the first mud scraping device 6 and the second mud scraping device 8 independently move in the gap, when the second layered guide plates 7 are arranged in two rows or more, the sedimentation zone R2 is particularly suitable for a medium and large horizontal flow tank with long distance from the water inlet end to the water outlet end, so that the sedimentation zone R2 firstly divides the second layered guide plates 7 into more than two alternate rows, then layers the rows, uses one second mud scraping device 8 for each row, each row becomes a high-efficiency sedimentation row, the sedimentation zone R2 that the high-efficient row of settling is established ties together, constitute high-efficient sedimentation zone R2, two adjacent second layering guide plates 7 are adjacent each other and form the clearance, two liang of adjacent second mud scraping device 8 independent motion in the clearance, above-mentioned clearance is the shared space that is used for placing adjacent mud scraping device partial structure, because there is not layering guide plate layering in clearance department, mud sinks to bottom of the pool wall 1, thereby in order to avoid reducing and sink in the mud that corresponds the clearance and reduce the dead zone scope, each second mud scraping device 8 mutually noninterfere ground is close two adjacent second layering guide plates 7 as far as possible for the prerequisite of clearance independent motion in order to reduce the clearance.

In one embodiment, each first scraper 6.1 or/and each second scraper 8.1 is driven by the first driving mechanism or/and the second driving mechanism to reciprocate between the pair of tank side walls 2 to scrape off the accumulated sludge on the first laminar flow guide 3 or/and the second laminar flow guide 7 correspondingly, specifically, when only the water outlet region R1 is provided, the first scraper 6.1 scrapes off the first laminar flow guide 3, when the water outlet region R1 and the settling region R2 are provided, the first scraper 6.1 and the second scraper 8.1 scrape off the first laminar flow guide 3 and the second laminar flow guide 7 respectively, and generally, according to the amount of sludge to be settled in the water flow, the water outlet region R1 is provided with only one row of the first laminar flow guide 3, and the settling region R2 is provided with more than two rows of the first laminar flow guide 3. For each first scraper 6.1 or/and each second scraper 8.1, one scraping operation is performed during the movement from the adjacent one of the tank side walls 2 to the adjacent opposite other of the tank side walls 2, and, when moving between a pair of the tank side walls 2, the sludge accumulated on each first laminar flow deflector 3 or/and each second laminar flow deflector 7 is scraped into the sludge through holes 2.2, and when moving to the adjacent one of the tank side walls 2, the lower part of the sludge through hole 2.2 located at the highest position of the tank side wall 2 is closed by the corresponding first scraper 6.1 or/and second scraper 8.1 and the upper part allows water flow, and the lower part and the upper part are preferably the lower half and the upper half, and all other first scrapers 6.1 or/and second scrapers 8.1 completely close the corresponding sludge through holes 2.2, and as to ensure that the highest position, i.e. the uppermost layer of the sludge through holes 2.2 can smoothly enter the upper part under the condition that the lower part is closed, the superiors are respectively passed mud hole 2.2 and will be set up a little more as far as possible, because the both sides of water outlet zone R1 and settling zone R2 all are equipped with independent mud collection pond 9 about corresponding logarithm corresponding to the column number of first layering guide plate 3 and second layering guide plate 7, each mud collection pond 9 is collected and is respectively listed as layering guide plate and bottom of the pool wall 1 by the long-pending mud of scraping, the superiors are passed the lower part of mud hole 2.2 and the long-pending mud passageway of scraping when mud and upper portion are the moisturizing passageway of mud collection pond 9 row mud, consequently, mud collection pond 9 has the secondary and deposits concentrated function, the row's mud solid content has been improved. It is to be understood that, for the working process of the mud collecting pit 9, each first mud scraper 6.1 and each second mud scraper 8.1 specifically are: when any one of the first mud scraping plate 6.1 or the second mud scraping plate 8.1 moves to be close to any one of the tank side walls 2, the mud scraping plate at the uppermost layer can only seal the lower half part of the mud passing hole 2.2, and the mud passing holes 2.2 corresponding to the mud scraping plates at other layers are synchronously and totally sealed, so that the circulation of the settling zone R2 and the water outlet zone R1 with the mud collecting tank 9 in the row is blocked, mud scraped into the mud collecting tank 9 starts secondary sedimentation and concentration, and the settling zone R2 and the water outlet zone R1 are not interfered. After the secondary sedimentation and concentration are finished, the sludge discharge valve is opened so that the sludge collection tank 9 discharges sludge, and the water in the sedimentation region R2 and the water outlet region R1 is replenished to the sludge collection tank 9 through the upper part of the unclosed sludge through holes 2.2 at the uppermost layer.

Referring further to fig. 3 and 5, in an embodiment, the first driving mechanism includes a driving assembly 11 and a driving plate 12, a pair of parallel guide rails 13, and a first driving frame, the first driving frame includes a first vertical frame 6.2 and a plurality of split vertical frames 6.3, the driving plate 12 is in driving connection with the driving assembly 11, the first vertical frame 6.2 and the plurality of split vertical frames 6.3 are parallel to each other along a direction perpendicular to the water flow direction and are respectively fixedly connected to two ends of the driving plate 12, for example, by a straight rod, the first vertical frame 6.2 and each split vertical frame 6.3 are respectively disposed at the water inlet end on the front side and the water outlet end on the rear side of each row of the first layered guide plate 3, and the side end and the bottom end of the first vertical frame 6.2 are respectively close to but not in contact with the first layered guide plate 3 and the tank bottom wall 1. The first vertical frames 6.2 are positioned at the upstream of the water flow direction and are fixedly connected with one end of each first mud scraper 6.1, and the plurality of split vertical frames 6.3 are fixedly connected with the other end of each first mud scraper 6.1 respectively. For each first layered guide plate 3, the first mullion 6.2 is used for being fixed together with the front side of each first layered guide plate 3, the split mullion 6.3 is set to have a corresponding length according to the length of the first layered guide plate 3, so that two ends of the split mullion 6.3 are respectively fixed with the drive plate 12 and the rear side of the corresponding first layered guide plate 3, moreover, along the water flow direction, the length of each split mullion 6.3 is sequentially increased in an equal difference numerical mode, for example, in a manner of being parallel to the water flow direction, each first mud scraper 6.1 is matched with the length of the corresponding first layered guide plate 3, and each first mud scraper 6.1 is movably close to or in contact with the upper surface of the corresponding first layered guide plate 3 and the pool bottom wall 1 to carry out mud scraping operation.

Referring further to fig. 2 to 5, in an embodiment, the second driving mechanism includes a driving assembly 11 and a driving plate 12 which are connected in a driving manner, a pair of parallel guide rails 13, and a second driving frame, the second driving frame includes a pair of second vertical frames 8.2, the pair of second vertical frames 8.2 are parallel to each other along a direction perpendicular to the water flow direction and are respectively and fixedly connected with two ends of the driving plate 12, the second driving frame and the first driving frame respectively make a periodic reciprocating movement between the two tank side walls 2 of the settling zone R2 and the water outlet zone R1 under the action of the respective driving assembly 11, and the movement track is perpendicular to the water flow direction and runs at a slow speed, so as to prevent the settled sludge from being significantly disturbed. It will be appreciated that the outlet region R1 could also be replaced by a second drive rack instead of the first, provided that the length between the second mullions 8.2 is greater than the length of any first laminar flow deflector. The pair of second vertical frames 8.2 are respectively arranged at the water inlet end of the front side and the water outlet end of the rear side of each row of second layered guide plates 7, the side end and the bottom end of each second vertical frame 8.2 are respectively close to but not in contact with the second layered guide plates 7 and the pool bottom wall 1, and it can be known that two adjacent second vertical frames 8.2, one adjacent first vertical frame 6.2 and one second vertical frame 8.2 are respectively arranged in one gap, the movement of the two frames in the gap is not interfered with each other, and the speed, the direction, the frequency and the like can be set according to the actual conditions such as raw water quality and the area of each layered guide plate. In addition, in order to reduce the respective gaps, the distance between the adjacent first and second mullions 6.2, 8.2 or between two adjacent second mullions 8.2 in the direction of the water flow is reduced, and the distance between the first and second mullions 6.2, 8.2 and the adjacent edge of the corresponding first and second

laminar deflectors

3, 7 is also reduced. The plurality of second mud scraping plates 8.1 are arranged at intervals along the direction parallel to the water flow, both ends of the second mud scraping plates are fixedly connected with the pair of second vertical frames 8.2, in the direction parallel to the water flow, each second mud scraping plate 8.1 is matched with the length of the corresponding second layered guide plate 7, each second mud scraping plate 8.1 is movably close to or contacted with the upper surface of the corresponding second layered guide plate 7 and the bottom wall 1 of the tank to scrape mud, it can be known that when the distance from the water inlet end to the water outlet end of the settling zone R2 is longer, a plurality of rows of second layered guide plates 7 are configured, each row of second layered guide plates 7 are provided with a corresponding second driving mechanism, thus, when only a single row of second layered guide plates 7 are configured, the second layered guide plates 7 and the bottom wall 1 of the tank are more in the front half part and less in the rear half part, so that the second mud scraping devices 8 are required to be configured with very long second mud scraping plates 8.1, the second scraper 8.1 is more eccentric in load and more resistant, which leads to a lack of increased failure rate of the second scraper 8.

With further reference to fig. 7, in an embodiment, the mud passing holes 2.2 are rectangular, a plurality of slide type mud guiding frames 14 correspondingly connected with the lower end surfaces of the mud passing holes 2.2 are arranged in the mud collecting tank 9, when the first mud scraper 6.1 or the second mud scraper 8.1 does not reach any tank side wall 2 in the moving process, the mud passing through each mud passing hole 2.2 is received on the corresponding slide type mud guiding frame 14 and does not directly fall into the lower part of the mud collecting tank 9, the slide type mud guiding frame 14 comprises a slide 14.1, two bosses 14.2 extending along the two ends of the slide 14.1, a fixed arm 14.3 and a reinforced arm 14.4, wherein the inclined surface of the slide 14.1 is used for guiding the mud to slide to the mud collecting tank 9, the two bosses 14.2 are used for limiting the sliding direction of the mud so as to correspondingly prolong the time consumption of sliding to the mud collecting tank 9, the fixed arm 14.3 is used for fixing with the side wall 2 of the reinforced tank, the fixed arm 14.4 is respectively connected with the reinforced arm 14.1, in this way, when a certain scraper moves from one side wall 2 of the pond close to the settling zone R2 or the water outlet zone R1 to the other side wall 2 of the pond close to the other side wall 2, the scraper pushes the front accumulated mud into the mud collecting pond 9 through the mud passing hole 2.2, the accumulated mud is remixed with the water below the mud collecting pond 9 on the way of descending from the mud passing hole 2.2 above and becomes turbid water, and in the process, the scraper does not close the mud passing hole 2.2, the two sides of the mud passing hole 2.2 are communicated, the scraped mud correspondingly squeezes the space of the mud collecting pond 9, so that the water in the mud collecting pond 9 partially overflows to the settling zone R2 or/and the water outlet zone R1 through the mud holes 2.2, the settling effect of the corresponding zone is affected, therefore, by arranging the slide type mud guide frame 14, before the corresponding mud passing hole 2.2 is not closed by the scraper, the accumulated mud is enabled to slide on the surface of the scraper, and is not separated from the mud guide plate due to sliding, and therefore, the water which flows back to the settling zone R2 or/and the water outlet zone R1 from the mud collecting tank 9 is not mixed water, the adverse effect on the settling effect is reduced, and the mud passing holes 2.2 are arranged into long strips, so that the sizes of the holes are designed to meet the requirement that the accumulated mud can pass through smoothly during mud scraping, and the mud scraping plate is also beneficial to ensuring that the lower part of the mud scraping plate is sealed and the upper part of the mud passing holes is opened to allow the water to pass through (the mud passing holes 2.2 are positioned at the uppermost layer) or the water to be completely sealed (the mud passing holes 2.2 are positioned at other layers) when the mud scraping plate is attached to the mud scraping plate.

Referring to fig. 8, in an embodiment, a protruding edge (not shown) is welded or bent to form a folded edge 15 at both ends of the first layered deflector 3 or/and the second layered deflector 7 downstream relative to the water flow direction, the protruding edge may be a steel strip, a notch (not shown) matching with the protruding edge or the folded edge 15 is provided on the first scraper 6.1 or/and the second scraper 8.1, and when the first scraper 6.1 or the second scraper 8.1 moves, the notch correspondingly moves along the protruding edge or the folded edge 15, so that the following purposes can be achieved by providing the protruding edge or the folded edge 15: 1. the water flow is prevented from flushing the accumulated mud which is deposited on each layered guide plate; 2. can be equivalent to the mud collecting disc forming the layer, can temporarily store the precipitated mud, and 3, the welded protruding edge can improve the strength of each layered guide plate. 4. And can be used as a clamping rail of each mud scraper in cooperation with the notch.

Referring to fig. 9, in an embodiment, the mud guards 10 are disposed at two ends of the first mud scraper 6.1 and/or the second mud scraper 8.1 in the water flow direction, so that, in the case where the protruding edges or the folded edges 15 are disposed at the water inlet end and the water outlet end of each layered deflector, when the height of the protruding edges or the folded edges 15 at the water inlet end and the water outlet end of the layered deflector is large, the effective water depth and sedimentation efficiency of the layer are affected, and when the height of the protruding edges or the folded edges 15 is small, sludge may be accumulated in front of the mud scrapers and may overflow from the protruding edges or the folded edges 15, so that the overflow of the accumulated sludge can be effectively prevented by additionally disposing the mud guards 10 at the two ends of the mud scrapers.

Referring further to fig. 10, in one embodiment, the first mud scraper 6.1 or/and the second mud scraper 8.1 is/are formed as a wedge-shaped body, the wedge-shaped body includes a rectangular parallelepiped and an equilateral triangle, the vertex side of the equilateral triangle is close to or in contact with the first layered flow deflector 3 or the second layered flow deflector 7, so that when the vertical frame moves to be close to the tank sidewall 2 due to the certain width of the vertical frame of each driving mechanism, the mud scraper cannot reach the side where the layered flow deflector intersects with the tank sidewall 2, the layered flow deflector has a dead zone where mud cannot be scraped, and by setting the free end of each layered flow deflector to be wedge-shaped, the end of the free end can be as close to the intersecting side as possible when mud is scraped, thereby reducing or eliminating the dead zone.

In one embodiment, a plurality of grooves (not shown) are provided on each tank sidewall 2, and when the driving plate 12 of the first driving mechanism moves to each tank sidewall 2, the first vertical frame 6.2 or a plurality of split vertical frames 6.3 enter the corresponding groove, or when the driving plate 12 of the second driving mechanism moves to each tank sidewall 2, a pair of second vertical frames 8.2 enter the corresponding groove, so that a plurality of grooves with the same number as that of the vertical frames can be reserved on the tank sidewall 2 during civil engineering, so that the vertical frames can move into the grooves, and the mud scraper can reach the side edge of the layered diversion plate intersected with the tank sidewall 2, thereby achieving the purpose of reducing or eliminating dead zones.

In an embodiment, the driving assembly 11 includes a driving motor for driving the driving plate 12 to move, and the driving assembly 11 further includes two rows of small wheels and parallel guide rails 13 arranged on the driving plate 12 and correspondingly set as wheel rails, the driving plate 12 and the small wheels are equivalent to form a driving trolley, or the driving assembly 11 further includes two rows of gears arranged on the driving plate 12 and parallel guide rails 13 correspondingly are racks in the same mode with the gears, when the running resistance of the mud scraping device is small, the moving and matching mode of the small wheels and the wheel rails can be adopted, and when the running resistance of the mud scraping device is large, the moving and matching mode of the gears and the racks can be adopted, so that the stability and reliability of the movement of the mud scraping device are ensured.

In one embodiment, an elastic member (not shown) for engaging and sealing with the mud passing hole 2.2 is fixed to a portion of the first mud scraper 6.1 and the second mud scraper 8.1 near the corresponding mud passing hole 2.2, and the elastic member is made of rubber, plastic, silica gel or the like, so that the flexibility of the mud scrapers and the sealing performance of the mud passing hole 2.2 can be improved, and the engaging portion with the mud passing hole 2.2 is tightly sealed to prevent water from flowing on both sides of the engaging portion.

In one embodiment, the lengths of the first laminar flow-guiding plates 3 are gradually increased to form an equal difference array, that is, the length difference between two adjacent first laminar flow-guiding plates 3 is equal, so that the water flow ascending regions are arranged at equal intervals on the top of the water outlet region R1, and the water flow ascending corresponding to the water flow ascending regions is stable and does not generate turbulence.

In one embodiment, the plurality of second laminar flow guiding plates 7 are arranged in at least two rows, the second mud scraping plates 8.1 corresponding to each row of second laminar flow guiding plates 7 move at different speeds, the speed is low speed and ranges from 0.6 m/min to 1m/min, and within the low speed range, the settled sludge, namely the accumulated sludge, can not be disturbed obviously to influence the water quality of the water outlet area.

In one embodiment, the bottom surface of the sludge through holes 2.2 on the tank side wall 2 is inclined with respect to the water flow direction toward the adjacent sludge collecting tank 9 by an inclination angle of 60 ° or more, and by setting the inclination angle to a value of 60 ° or more, it is possible to ensure that the sludge can smoothly flow down through the sludge through holes 2.2 and into the sludge collecting tank 9 without clogging the sludge through holes 2.2.

In one embodiment, the water collection tank 4 is a hollow semi-cylindrical shape, and a plurality of water passing holes (not shown) allowing water flow passing through each ascending region are formed in the peripheral wall of the water collection tank 4 along the direction perpendicular to the water flow direction, so that little accumulated mud rising along with the water flow enters the water collection tank 4 along with the water passing holes, and most of the accumulated mud is discharged out of the water collection tank 4 from other water passing holes under the action of gravity, thereby further ensuring that the quality of the discharged water is excellent.

In one embodiment, the horizontal flow sedimentation tank further comprises a mud valve, when the mud valve is opened, the accumulated mud in the mud collecting tank 9 is discharged outwards, and meanwhile, the water flow enters the mud collecting tank 9 through the upper parts of the mud passing holes 2.2 positioned at the top of the water outlet region R1 or/and the sedimentation region R2, so that the mud can be discharged efficiently and smoothly through the combined action of the mud valve and the mud scraper, and the mud passing holes 2.2 at the uppermost layer are only partially sealed. In addition, when sludge is discharged from the settling zone R2 and the outlet zone R1, the following can be understood: the same-row mud scraper starts from the side wall 2 close to one side of the pool, and runs to the side wall 2 close to the other side of the pool to finish the time consumption of once mud scraping. When the concentrated sludge is discharged from the sludge collecting tank 9, the following conditions can be understood: and (3) starting secondary sedimentation concentration from a sludge passing hole 2.2 of the side wall 2 of the blocking pool to the sludge collecting pool 9 by the same row of sludge scraping plates, and consuming time until sludge discharge is finished after concentration and sludge discharge by opening a valve of the sludge collecting pool 9.

In one embodiment, a pair of tank sidewalls 2 respectively fixedly support both ends of the water collection tank 4, the first laminar flow-guiding plate 3 and the second laminar flow-guiding plate 7, so that the water collection tank 4 and each laminar flow-guiding plate are stably fixed and the overall structure is compact.

Referring to fig. 11, in an embodiment, the flow space further includes a water inlet region R3 located at the upstream of the water outlet region R1 or the settling region R2, and the water inlet region R3 includes a flow guide wall 16 having a plurality of water flow holes 17, at least two flow distribution plates 18 arranged in parallel along the water flow direction, a plurality of sludge collection grooves 19 arranged in parallel at the lower part of the flow guide wall 16 and each having a plurality of sludge discharge holes, and sludge discharge pipes 20 correspondingly connected to the sludge collection grooves 19, so that not only the water flow is distributed and buffered by the water flow holes 17, but also the flow distribution plates 18 can further distribute and guide the water flow to the layered flow guide plates, and the sludge collection grooves 19 and the sludge discharge pipes 20 cooperate to discharge the primarily settled sludge out of the flow space through the sludge discharge holes, thereby improving settling efficiency and effect.

In an embodiment, a bracket (not shown) for fixing both ends of each parallel guide rail 13 is provided on each of the tank side walls 2 and the sludge collecting tank 9 on the same side, so that, by fixing a pair of parallel guide rails 13 on the tank side walls 2 and the sludge collecting tank 9 by using the bracket, not only is the stability high, but also since both ends of the guide rails can be respectively connected with one tank side wall 2, it is ensured that each scraper moves along the parallel guide rails 13 perpendicular to the two tank side walls 2 to be in contact with the tank side walls 2, and further each scraper can scrape almost the whole area of the corresponding layered guide plate, thereby reducing the sludge allowance on the layered guide plate to the maximum extent.

In an embodiment, a support reinforcing frame (not shown) is arranged on the lower surface of each of the first layered guide plate 3 and the second layered guide plate 7, and the upper surface of each of the layered guide plates bears the accumulated mud, so that the strength of the layered guide plates is enhanced by arranging the support reinforcing frame on the lower surfaces of the layered guide plates, and the effect is more obvious especially for the situation that the relative span of the two tank side walls 2 is large.

In one embodiment, the mud collecting pool 9 and the diversion channel 5 on both sides share the pool side wall 2 on the same side with the water outlet region R1 or the mud collecting pool 9 on both sides share the pool side wall 2 on the same side with the settling region R2, so that the structure is simplified and the cost is saved, and the mud collecting pool 9 and the diversion channel 5 are close to each region, thereby facilitating the relatively rapid entrance of accumulated mud and water flow.

In one embodiment, in the direction parallel to the water flow, the length between the first vertical frame 6.2 and each split vertical frame 6.3 of the first driving frame is greater than the length of the corresponding first mud scraper 6.1 is greater than the length of the first layered guide plate 3 or/and the length between a pair of second vertical frames 8.2 of the second driving frame is greater than the length of the second mud scraper 8.1 is greater than the length of the second layered guide plate 7, so that the mud scraper covers the length of the whole layered guide plate to scrape accumulated mud in a vertical moving manner in the direction parallel to the water flow, and the good mud scraping effect is ensured.

It should be added that the utility model is described as follows: the rows are distinguished by taking a plurality of rows of the splash guards as a whole along the water flow direction, and the rows are distinguished by different splash guards in the same row along the direction vertical to the water flow direction, and the number of the rows is more than or equal to two.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and any modifications, equivalents, and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A horizontal flow sedimentation tank, comprising:

a bottom wall and a pair of opposite side walls between the bottom wall and the side wall, which together define a flow space for water flow, the direction of the water flow is parallel to the plane of the bottom wall;

the flow space comprises a water outlet area, a row of multi-row first layered guide plates which are spaced and parallel to the water flow direction are arranged in the water outlet area, the length of each first layered guide plate in the direction parallel to the water flow direction is sequentially reduced from the bottom wall of the pool to the top of the flow space and is vertical to the water flow direction, a water flow rising area is formed at the tail end of each first layered guide plate in the downstream of the water flow direction, and a plurality of water collecting grooves which are positioned above each water flow rising area and receive rising water flow are arranged at the top of the water outlet area;

the flow guide channels are arranged on the outer sides of the pair of pool side walls corresponding to two ends of the water collecting tank, two ends of the water collecting tank are open, and through holes for communicating the water collecting tank with the adjacent flow guide channels are formed in each pool side wall;

the first mud scraping device comprises a first driving mechanism and a plurality of first mud scraping plates, one first mud scraping plate is arranged corresponding to each first layered flow guide plate, and the first driving mechanism drives the first mud scraping plates to reciprocate relative to the corresponding first mud scraping plates in the direction perpendicular to the water flow direction;

and a pair of mud collecting tanks are arranged on the outer sides of the pair of tank side walls corresponding to the two ends of each row of the first layered guide plate, a plurality of mud passing holes distributed along the side edge of the first layered guide plate are formed in the adjacent upper parts of the pair of tank side walls and the two ends of the first layered guide plate, and each mud passing hole is communicated with the mud collecting tank at the same side.

2. The horizontal flow sedimentation tank according to claim 1,

the number of the water collecting grooves is equal to the sum of the first layered guide plate and the bottom wall of the pool, and one water collecting groove is arranged at the position, right opposite to each water flow rising area, of the top of the water outlet area.

3. The horizontal flow sedimentation tank according to claim 1,

the flow space also comprises a settling zone positioned at the upstream of the water outlet zone, and at least one row of second layered guide plates which are arranged in the settling zone and are spaced and parallel to the water flow direction are arranged in the settling zone;

the horizontal flow sedimentation tank further comprises:

the second sludge scraping devices are arranged in the number corresponding to the number of the second layered guide plate rows and comprise a second driving mechanism and a plurality of second sludge scraping plates, and one second sludge scraping plate is arranged corresponding to each second layered guide plate;

and a pair of mud collecting tanks are arranged at the outer sides of the pair of tank side walls corresponding to the two ends of each row of the second layered guide plates, and a plurality of mud passing holes distributed along the side edges of the second layered guide plates are formed in the adjacent upper parts of the pair of tank side walls and the two ends of the second layered guide plates, which are intersected with each other.

4. The horizontal flow sedimentation tank according to claim 3,

each first layered guide plate and each second layered guide plate in each row are flat plates, the side edges of the first layered guide plates in the upstream of the water flow direction are aligned with each other, the number of rows of the first layered guide plates in each row is the same as that of the second layered guide plates in each row, and the first layered guide plates and the second layered guide plates in the same row are located on the same plane;

when the second layered guide plate is in a column, the adjacent first layered guide plate and the second layered guide plate are mutually adjacent and form a gap, and the first mud scraping device and the second mud scraping device independently move in the gap;

when the second layered guide plates are more than two rows, two adjacent second layered guide plates are mutually adjacent and form a gap, and every two adjacent second mud scraping devices independently move in the gap.

5. The horizontal flow sedimentation tank according to claim 1 or 3,

each first mud scraper or/and each second mud scraper respectively reciprocates between a pair of the pond side walls under the driving of the first driving mechanism or/and the second driving mechanism to correspondingly scrape off the mud accumulated on the first layered guide plate or/and the second layered guide plate, for each first mud scraper or/and each second mud scraper, mud scraping is completed in the process of moving from the close to one pond side wall to the close to the other opposite pond side wall, the mud accumulated on each first layered guide plate or/and each second layered guide plate is scraped into the mud through hole when moving between a pair of the pond side walls, the lower part of the mud through hole positioned at the highest position of the pond side walls is sealed by the corresponding first mud scraper or/and second mud scraper when moving to the close to any one pond side wall, and the upper part of the mud through hole allows water flow to pass through, and all other first mud scrapers or/and second mud scrapers completely close the corresponding mud passing holes.

6. The horizontal flow sedimentation tank according to claim 1,

the first driving mechanism comprises a driving assembly and a driving plate which are in driving connection, a pair of parallel guide rails and a first driving frame, the first driving frame comprises a first vertical frame and a plurality of split vertical frames, the driving plate is in driving connection with the driving assembly, the first vertical frame and the split vertical frames are perpendicular to the water flow direction, parallel to each other and fixedly connected with two ends of the driving plate respectively, the first vertical frame is located on the upper portion of the water flow direction and fixedly connected with one end of each first mud scraper, the split vertical frames are fixedly connected with the other ends of the first mud scrapers respectively, the lengths of the split vertical frames are increased sequentially along the water flow direction, the split vertical frames are parallel to the water flow direction, the first mud scrapers are matched with the corresponding lengths of the first layered guide plates, and the first mud scrapers are respectively corresponding to the upper surface of the first layered guide plates and the movable pool bottom wall Are brought into close proximity or contact for a mud scraping operation.

7. The horizontal flow sedimentation tank according to claim 3,

the second actuating mechanism includes drive assembly and drive plate, a pair of parallel guide and the second drive frame that the drive is connected, the second drive frame includes a pair of second mullion, perpendicular to is followed to a pair of second mullion water flow direction be parallel to each other and respectively with the both ends fixed connection of drive plate, a plurality of second mud scrapers along being on a parallel with water flow direction interval set up and both ends all with a pair of second mullion fixed connection, on being on a parallel with water flow direction, each second mud scraper with correspond the length adaptation of second layering guide plate, each second mud scraper respectively with correspond the upper surface of second layering guide plate with bottom of the pool wall movably presses close to or contacts in order to carry out the mud scraping motion mutually.

8. The horizontal flow sedimentation tank according to claim 1 or 3,

the mud passing holes are rectangular, a plurality of slide type mud guiding frames correspondingly connected with the lower end faces of the mud passing holes are arranged in the mud collecting pool, and when the first mud scraping plate or the second mud scraping plate does not reach any side wall of the pool in the moving process, mud accumulated in the mud passing holes is received on the corresponding slide type mud guiding frames.

9. The horizontal flow sedimentation tank according to claim 1 or 3,

protruding edges or folded edges formed by bending are welded at two end parts of the first layered guide plate or/and the second layered guide plate relative to the upstream and downstream in the water flow direction, notches matched with the protruding edges or the folded edges are arranged on the first mud scraper or/and the second mud scraper, and when the first mud scraper or the second mud scraper moves, the notches move along the protruding edges or the folded edges relatively.

10. The horizontal flow sedimentation tank according to claim 1,

the lengths of the first layered guide plates form an increasing equal difference array from small to large.